Refrigerating apparatus



Patented June 15, 1943.

REFRIGERATING APPARATUS Lawrence A. Philipp, Detroit, Mich, assignor toNash-Kelvinator Corporation, Detroit, Mich a corporation of MarylandOriginal application August 23, 1940, Serial No. 353,924. Divided andthis application July 18, 1941, Serial No. 403,026

2 Claims.

This .invention relates to refrigerating apparatus, and moreparticularly to household refrigerators.

The present application is a division of my cofpending applicationSerial No. 353,924 filed August 23, 1940, for Refrigerating apparatus.

One of the objects of my invention is, to provide an improvedarrangement in a machine compartment of a refrigerator for creating anatural draft flow of air over heat emitting apparatus, and to arrangethe cabinet so that the walls thereof aid in deadening noisestransmitted by said heat emitting apparatus.

Further objects and advantages of the present invention will be apparentfrom the following description, reference being had to the accompany'ing drawing, wherein a preferred form of the present invention isclearly shown.

In the drawing:

The flgure in the drawing is a side view of a refrigerator in elevationand partly broken away showing the invention.

Referring to the drawingflthere is shown a.

' cabinet, designated in general by the numeral 20.

The cabinet includes a food storage compartment 24 and a machinecompartment 26. Within the food storage compartment I have provided arefrigerant evaporating element, designated ingeneral by the numeral 30,and glass shelves 3i. The-food storage compartment 24 is also cooled bya secondary refrigerating system 32.

' Liquid refrigerant is delivered to the evaporating element 30 by arefrigerant liquefying and condensing element 40. The element 40includes motor compressor unit 42 and condenser 44. The

element 40 is disposed within the machine compartment 2i which-is openat the rear thereof and at the bottom thereof. The motor compressor unitand condenser 44 are secured to and carried by base 50. The condenser ishorizontally positioned on a slight angle below the motor compressorunit. The condensing element 40 deliversliquid refrigerant to theevaporator element 3. through asmall diameter or capillary tube 52. Thistube constitutes the sole control device for controlling theflow ofliquid refrigerant to the evaporating element. Evaporated refrigerant iswithdrawn from the evaporating element into a vapor return conduit 54.The vapor return conduit is placed in heat exchange relation with thesmall diameter tube 52 where the cool gases in the return conduit 54cool the conduit so that it tends to cool the liquid refrigerant passingthrough'the conduit 52.

:A detailed description of the cooling system, shelf arrangement andoperation of the condensing system is contained in the above applicationof which this is a division. Further description herein is believedunnecessary to a complete understanding of the subject matter hereindescribed and c1aimed.-

At the rear of the cabinet adjacent the machine compartment, Ihaveprovided a sound insulating flue 60. Directly opposite the flue 60and at the front of the machine compartment, I have provided a door 64which carries a vegetable bin 66. On the rear wall of the vegetable bin65, I have provided a slab of insulating material 68 which has soundbsorblng characteristics. Preferably, the slab o insulating material andvegetable'bin extend substantially from one side wall to the other ofthe machine compartment. As will be noted. the slab of insulatingmaterial tilts so that the upper end thereof is I closer to the motorcompressor unit than the lower endthereof. By this arrangement airenters the lower part of the cabinet about the: cabinet base 10 andpasses over thecondenser and through the motor compressor unit and outthe flue up the rear of the cabinet. Since the slab of .insulatingmaterial 68 is tilted it tends to cause the air to flow toward the motorcompressor unit and flue 60. Since the flue 60 is provided of soundinsulating material, noises transmitted by the motor compressor unit areabsorbed by such insulating material.

-Although only a preferred form of the invention has been illustrated,and that form described in detail, it will be apparent to those skilledin the art that various modifications may be made without departing fromthe spirit of the inven-- tion or from the scope of the appended claims.

I claim: l I

1. Refrigerating apparatus comprising a cabinet having a machinecompartment open at its rear and bottom, a refrigerant condenserpositioned in the lower portion of said compartment, a compressorpositioned above said condenser, a sound insulated panel at the rear ofsaid compartment, and a sound insulated tilted panel at the front ofsaid compartment.

2. Refrigerating apparatus comprising a cabinet having a machinecompartment open at its rear and bottom, a refrigerantcondenser-positioned in the lower, portion of said compartment, acompressor positioned'over and above said condenser and an inclinedinsulating panel extending across the front of said compartment with theupper part thereof being closer to said compressor than the lower partof said panel.

LAWRENCE A. PHILIPP.

